5. A _________ represent approximately one billion memory locations.
kilobyte megabyte gigabyte terabyte None of these

6. ______ cells involves creating a single cell by combining two or more selected cells.
Formatting Merging Embedding Splitting None of these

7. The operating system is the most common type of ______________ software.
communication application system word-processing None of these

8. When you quickly press and releaes the left mouse button twice , you are ____
Primary-clicking pointing Double-clicking Secondary-clicking None of these

9. The horizontal and vertical lines on a worksheet are called ___
cells sheets block lines gridlines None of these

10. To delete an incorrect character in a document, __________ to erase to the right of the insertion
press the left mouse key double-click the right mouse key press the BACKSPACE key press the delete key None of these